1
general::
Phrase(s): have it in for someone
to be mad at someone; to wish to harm someone. • Jane seems to have it in for Jerry. I don’t know why. • Max has it in for his old girlfriend since she broke up with him.
McGrawhill's American Idioms And Phrasal Verbs
2
general::
Intend to harm, especially because of a grudge. For example, Ever since he called the police about their dog, the neighbors have had it in for Tom. [Mid-1800s]
American Heritage Idioms